TW201312526A - Touch display panel - Google Patents

Abstract

A touch display panel including an organic electro-luminescent display panel, a cover lens, a touch sensing element, and a decoration layer is provided. The organic electro-luminescent display panel includes a carrier plate, an assembling cover, and a plurality of organic light emitting units. The carrier plate and the assembling cover are assembled to construct a closed space. The organic light emitting units are disposed on the carrier plate and located inside the closed space. The cover lens is adhered on a side of the carrier plate away from the organic light emitting units. The touch sensing element is disposed between the carrier plate of the organic electro-luminescent display panel and the cover lens. The decoration layer is disposed on the cover lens.

Description

Touch display panel

The present invention relates to a touch display panel, and more particularly to a touch display panel that performs display using an organic light emitting unit.

In today's information society, people's dependence on electronic products is increasing. Electronic products such as mobile phones, handheld PCs, personal digital assistants (PDAs), or smart phones are everywhere in life. In order to achieve more convenience, lighter weight and more humane purposes, many information products have been converted from traditional keyboards or mouse input devices to touch panels as input devices, with touch at the same time. The touch display panel with display function is one of the most popular products today.

The present invention provides a touch display panel, which utilizes an organic light emitting unit for display and directly forms a touch component on the cover plate. Therefore, the touch display panel can have both touch and display functions without greatly increasing the thickness thereof.

The invention provides a touch display panel comprising an organic electroluminescent display panel, a cover plate, a touch component and a decorative layer. The organic electroluminescent display panel includes a carrier board, a package cover, and a plurality of organic light emitting units. The carrier plate is assembled with the package cover to form a sealed space, and the organic light emitting unit is disposed on the carrier plate and located in the sealed space. The cover plate is adhered to the side of the carrier plate away from the organic light emitting unit. The touch component is disposed between the carrier plate and the cover plate of the organic electroluminescent display panel. The decorative layer is disposed on the cover plate.

Based on the above, the present invention disposes a touch element on a cover plate provided with a decorative layer, and adheres the cover plate to the organic electroluminescent display panel. In this way, the touch display panel can have a display function and a touch function without significantly increasing the thickness.

The above described features and advantages of the present invention will be more apparent from the following description.

1 is a cross-sectional view of a touch display panel according to a first embodiment of the present invention. Referring to FIG. 1 , the touch display panel 100 includes an organic electroluminescent display panel 110 , a cover 120 , a touch component 130 , and a decorative layer 140 . The organic electroluminescent display panel 110 includes a carrier board 112, a package cover 114, and a plurality of organic light emitting units 116. The carrier plate 112 is assembled with the package cover 114 to form a sealed space S, and the organic light emitting unit 116 is disposed on the carrier plate 112 and located in the sealed space S. The cover plate 120 is adhered to one side of the carrier plate 112 away from the organic light emitting unit 116. The touch element 130 is disposed on the cover 120, such as a capacitive touch element, and the decorative layer 140 is disposed around the cover 120.

In this embodiment, the carrier plate 112 is a light-transmitting carrier plate, and the package cover 114 is bonded to the carrier plate 112 through a frame glue 118 to enclose the sealing space S, wherein the sealing space S may be filled with a blunt gas. Or a transparent filling. Each of the organic light emitting units 116 includes, for example, a first electrode 116A, a light emitting layer 116B, and a second electrode 116C, which are sequentially stacked on the carrier board 112. That is, the first electrode 116A is located between the carrier plate 112 and the light emitting layer 116B, and the second electrode 116C is located at a side of the light emitting layer 116B away from the first electrode 116A. Further, the first electrode 116A is, for example, a transparent electrode and the second electrode 116C is, for example, a reflective electrode. Therefore, the organic light-emitting unit 116 is, for example, a bottom emission type organic light-emitting unit. In other words, the display light of the organic electroluminescent display panel 110 is viewed by the user through the carrier plate 112 and the cover panel 120.

The cover plate 120 may be a glass carrier or a plastic carrier. The decorative layer 140 is disposed on the periphery of the touch display panel 100. For example, the transmission line T1 and the touch element 130 of the organic electroluminescent display panel 100 are disposed. The transmission line T2) is either used to provide a decorative pattern. The material of the decorative layer 140 may be ink, ceramic material, diamond-like carbon or photoresist material. In this embodiment, the decorative layer 140 and the touch element 130 are disposed on the same side of the cover plate 120, but the invention is not limited thereto. In addition, the touch element 130 is covered by a protective layer PV, and an adhesive layer 150 is disposed between the protective layer PV and the carrier board 112 to attach the organic electroluminescent display panel 100 and the cover sheet 150 together. The adhesive layer 150 can be, for example, a full-surface coated re-cured liquid optical adhesive, or a solid-state attached optical adhesive, or a square-shaped adhesive surrounding the touch element 130.

Further, in order to drive various functions, the touch display panel further includes driving chips 160, 170 and flexible circuit boards 180, 190. The organic display unit 116 and the touch element 130 are electrically connected to the driving wafer 160 and the driving wafer 170 through the transmission line T1 and the transmission line T2, respectively, and the flexible circuit boards 180 and 190 are used to connect the driving wafers 160 and 170 to the outside, respectively. element. In addition, the touch wafers 160 and 170 are disposed on the carrier board 112 and the cover board 120, for example, on the wafer on the carrier board (Chip on Glass, COG). However, the present invention is not limited thereto. In other embodiments, the touch wafers 160, 170 may be disposed on the flexible circuit boards 180, 190 or otherwise configured. In this embodiment, there is no other carrier between the cover 120 and the organic electroluminescent display panel 110. Therefore, the thickness of the touch display panel 100 is not greatly increased by adding touch-sensitive components. That is to say, the design of the embodiment makes the touch display panel 100 have both display and touch functions without significantly increasing the thickness.

In detail, FIG. 2 is a schematic top view of the first type of touch element. Referring to FIG. 1 and FIG. 2 simultaneously, the touch element 130 is composed of, for example, a plurality of first sensing series 132 arranged in parallel with each other and a plurality of second sensing series 134 arranged in parallel with each other. FIG. 2 is only a partial top view for convenience of explanation. The first sensing series 132 and the second sensing series 134 respectively extend along the first direction D1 and the second direction D2, and the first direction D1 and the second direction D2 intersect each other.

The first sensing series 132 includes, for example, a plurality of first sensing electrodes E1 and a first bridge electrode C1 that serially connects the first sensing electrodes E1 into a series, and the second sensing series 134 also includes a plurality of The second sensing electrode E2 and the second bridge electrode C2 that serially connects the second sensing electrode E2 into a series. The shape of the first sensing electrodes E1 and E2 is not limited to the illustrated diamond shape, and may be other shapes such as a polygon. As shown in FIG. 1 , the second bridge electrode C2 is disposed on the cover plate 120 , and an insulation pattern I1 is disposed between the second bridge electrode C2 and the first bridge electrode C1 to insulate the two from each other, wherein the insulation pattern is I1 may be an island-like pattern. In addition, in the present embodiment, the first sensing electrode E1 and the second sensing electrode E2 are disposed on the same plane, that is, the surface of the cover plate 120. However, the present invention is not limited thereto. For example, the surface of the cover plate 120 is first plated with an insulating layer (SiO2), and then the first sensing electrode E1 and the second sensing electrode E2 are disposed on the insulating layer.

For example, FIG. 3 is a partial top view of a second type of touch element, and FIG. 4 is a cross-sectional view of the touch element of FIG. 3 along a line A-A'. Referring to FIG. 3 and FIG. 4 , the touch component 130A has the same components as the touch component 130 . Therefore, the same components are denoted by the same components in the touch component 130A and the touch component 130 . Specifically, the touch element 130A and the touch element 130 are fabricated in different fabrication sequences.

In the touch element 130A, the first bridge electrode C1 is located between the insulation pattern I2 and the cover plate 120, and the second bridge electrode C2 is located on the side of the insulation pattern I2 away from the cover plate 120. That is to say, in the embodiment, the first sensing series 132A and the second sensing electrode E2 may be first formed in this embodiment. Next, an insulating pattern I2 is formed on the first bridge electrode C1 of the first sensing series 132A, wherein the insulating pattern I2 is, for example, an island pattern. Thereafter, a second bridge electrode C2 is formed on the insulation pattern I2 to serially connect the second sensing electrode E2 into the second sensing series 132B.

5 is a partial top view of a third type of touch element, and FIG. 6 is a cross-sectional view of the touch element of FIG. 5 taken along line B-B'. Referring to FIG. 5 and FIG. 6 , the touch component 130B has the same components as the touch component 130A. Therefore, the same component is denoted by the same component symbol in the touch component 130B and the touch component 130A. In detail, the touch element 130B is different from the touch element 130A in that the touch element 130B replaces the insulating pattern I2 in the touch element 130A with an insulating layer I3. The insulating layer I3 covers the first sensing series 132B and the second sensing electrode E2 of the second sensing series 134B, and the second bridge electrode C2 of the second sensing series 134B is disposed on the insulating layer I3. . In addition, the insulating layer I3 has a plurality of through holes (TH), so that the second bridging electrode C2 is electrically connected to the second sensing electrode E2 through the contact windows TH.

7 is a partial top view of a fourth type of touch element, and FIG. 8 is a cross-sectional view of the touch element of FIG. 7 taken along line C-C'. Referring to FIG. 7 and FIG. 8 simultaneously, the touch element 130C has the same components as the touch element 130B. Therefore, the same components are denoted by the same components in the touch element 130C and the touch element 130B. In detail, the touch element 130C is different from the touch element 130B in that the bridge electrode C2 of the second sensing series 134C is disposed, for example, on a side of the insulating layer I4 close to the cover plate 120. That is to say, the touch element 130C and the touch element 130B are fabricated in different fabrication sequences. In addition, in the present embodiment, the first sensing series 132C and the second sensing electrodes E2 of the second sensing series 134C are disposed on the insulating layer I4. In addition, the insulating layer I4 has a plurality of contact windows TH such that the second sensing electrodes E2 are electrically connected to the second bridge electrodes C2 through the contact windows TH to form a second sensing series 134C.

FIG. 9 is a partial top view of the fifth touch element, and FIG. 10 is a cross-sectional view of the touch element of FIG. 9 taken along line D-D'. Referring to FIG. 9 and FIG. 10 , the touch component 130D has the same components as the touch component 130 . Therefore, the same component is denoted by the same component symbol in the touch component 130D and the touch component 130 . Specifically, the difference between the touch element 130D and the touch element 130 is that, except for the contact window TH, the island-shaped insulating pattern I5 of the touch element 130D completely covers the second bridge electrode C2 of the second sensing series 134D. The first bridge electrode C1 of the first sensing series 132D is disposed on a side of the insulation pattern I5 away from the cover board 120. In other words, in the present embodiment, the insulating pattern I5 has a plurality of contact windows TH respectively exposing both ends of the second bridge electrode C2, and the second sensing electrodes E2 are electrically connected to the contact windows TH through the contact windows The second bridge electrode C2 constitutes a second sensing series 134D.

This design combines the advantages of the first and fourth touch elements described above. The advantage is that the second bridge electrode C2 is completely covered by the insulation pattern I5 with respect to the first touch element described above, thus forming the first When the pattern of the electrodes E1 and E2 is sensed, the etching liquid does not easily infiltrate from the side of the insulating pattern I5 and damages the second bridge electrode C2. On the other hand, in the first touch element described above, the second bridge electrode C2 is only partially covered by the insulating pattern I1 (as shown in FIG. 2 ), so that the first sensing electrode E1 and the second sensing electrode E2 are formed. In the pattern, the etching liquid may infiltrate from the side of the insulating pattern I1 to damage the second bridge electrode C2. Another advantage is that, compared with the fourth touch element described above, the insulating pattern I5 is only disposed in the bridging region, instead of an entire insulating layer I4, the insulating pattern I5 and the adjacent two second sensing electrodes E1. The sum of the areas of the E2 overlap is less than 40% of the area of each of the second sensing electrodes E2, so that the transmittance of the positions of the first sensing electrode E1 and the second sensing electrode E2 is increased, and the OLED light source can be reduced by 1% to 2 % light loss. Moreover, when a whole layer of the insulating layer I4 is an organic layer, the entire panel will appear to be slightly opaque, such as a yellowish-colored color, so that a full-surface coating can be omitted. The insulating layer I4 is a better choice. The second bridge electrode C2 may be a metal, a transparent conductive material or a laminate of the two.

The above-mentioned plurality of touch elements 130A-130D can be used in place of the touch element 130 of FIG. 1 to provide the touch sensing function of the touch display panel 100. In addition, the present embodiment is not limited to the above-mentioned touch elements 130, 130A~130D, and the designer can use other types of touch elements to be disposed in the touch display panel 100 to provide touch sensing functions, such as all sensing. The electrodes are all located in the same layer and do not require a single-layer electrode structure of the bridge electrodes, and the shape of the sensing electrodes may be various shapes such as a square, a triangle, and the like.

11 is a cross-sectional view showing a touch display panel according to a second embodiment of the present invention. Referring to FIG. 11 , the touch display panel 200 is substantially the same as the touch display panel 100 of the first embodiment, and therefore the same components will be denoted by the same reference numerals and will not be described again. In this embodiment, the touch display panel 200 further includes a circular polarizing plate 210 disposed between the organic electroluminescent display panel 110 and the touch element 130. Specifically, in this embodiment, one side of the circular polarizing plate 210 is attached to the touch element 130 by using an adhesive layer 220, and the other side of the circular polarizing plate 210 is attached to the organic electric power using another adhesive layer 230. The carrier plate 112 of the light display panel 110 is excited.

The arrangement of the circular polarizing plate 210 helps to prevent external light reflected by the organic electroluminescent display panel 100 from being emitted from the touch display panel 100. In detail, the external light L passes through the circular polarizing plate 210 and is converted into the first circularly polarized light L1. The first circularly polarized light L1 enters the organic electroluminescent display panel 100 and may be reflected by the interface reflection between the members. At this time, the reflected reflected light L2 cannot pass through the circularly polarizing plate 210 because its phase is substantially opposite to the phase of the first circularly polarized light L1. As a result, when the user views the screen displayed on the touch display panel 200, the reflected light L2 is not easily received. Therefore, the display screen is less likely to be interfered by the reflected light L2, and the user can see the display screen of an ideal quality.

Further, FIG. 12 is a cross-sectional view of a touch display panel according to a third embodiment of the present invention. Referring to FIG. 12 , the touch display panel 300 is substantially the same as the touch display panel 100 of the first embodiment, and therefore the same components will be denoted by the same reference numerals and will not be described again. In this embodiment, the touch display panel 300 further includes a shielding conductive layer 310 between the organic electroluminescent display panel 110 and the touch element 130. In the present embodiment, the shield conductive layer 310 is formed on the carrier board 112 of the organic electroluminescent display panel 110. Moreover, the adhesive layer 320 is used to bond the shielding conductive layer 310 and the touch element 130 together. The shielding conductive layer 310 may be a full-surface conductive layer or a ring-shaped conductive layer or a mesh-shaped conductive layer, which is disposed to avoid electromagnetic interference (EMI) between the touch element 130 and the organic light-emitting unit 116.

FIG. 13 is a cross-sectional view showing a touch display panel according to a fourth embodiment of the present invention. Referring to FIG. 13 , the touch display panel 400 is substantially the same as the touch display panel 300 of the third embodiment. Therefore, the same components will be denoted by the same reference numerals and will not be described again. In this embodiment, the shield conductive layer 410 of the touch display panel 400 is directly formed on the touch element 130. Moreover, in the embodiment, the adhesive layer 420 is used to adhere the shield conductive layer 310 to the carrier board 112. That is, the adhesive layer 420 is located between the shield conductive layer 310 and the carrier board 112. The shielding conductive layer 410 may be a full-surface conductive layer or a ring-shaped conductive layer or a mesh-shaped conductive layer, which is disposed to avoid electromagnetic interference (EMI) between the touch element 130 and the organic light-emitting unit 116.

Further, FIG. 14 is a cross-sectional view showing a touch display panel according to a fifth embodiment of the present invention. Referring to FIG. 14 , the touch display panel 500 is substantially the same as the touch display panel 100 of the first embodiment, and therefore the same components will be denoted by the same reference numerals and will not be described again. Specifically, in the embodiment, the decorative layer 540 is disposed on a side of the cover plate 120 away from the touch element 130. That is to say, in this embodiment, the touch element 130 and the decorative layer 540 are respectively disposed on opposite sides of the cover plate 120. It is worth mentioning that the decorative layer 540 may be made of a ceramic material or a material such as diamond-like carbon, and the thickness thereof is relatively thin and it is not easy to form a prominent convex structure on the cover plate 120. Therefore, the user can still feel a smooth touch when the cover panel 120 is touched.

15 is a cross-sectional view of a touch display panel according to a sixth embodiment of the present invention, and FIG. 16 is a partial top view of the touch display panel of FIG. Referring to FIG. 15 , the same components of the touch display panel 600 as those of the touch display panel 100 of the first embodiment will be denoted by the same reference numerals and will not be described again. Specifically, the touch display panel 600 includes a circular polarizing plate 610 and a shielding conductive layer 620 in addition to the components of the touch display panel 100. The circularly polarizing plate 610 is disposed on the side of the cover plate 120 away from the touch element 130, and the shielding conductive layer 620 is formed on the touch element 130 and attached to the organic electroluminescent display panel 110 by the adhesive layer 630. Of course, the shielding conductive layer 620 can be selectively formed on the organic electroluminescent display panel 110 or on the touch element 130.

In addition, the touch display panel 600 further includes a flexible circuit board 640 and a driving chip 650. The flexible circuit board 640 is electrically connected to the organic light emitting unit 116 and the touch element 130 , and the driving circuit 650 is electrically connected to the organic light emitting unit 116 and the touch element 130 through the flexible circuit board 640 . That is to say, in this embodiment, the single-function driving chip 650 is used to simultaneously drive the organic light-emitting unit 116 and the touch element 130. Therefore, the present embodiment uses only one flexible circuit board 640 to be connected between the organic electroluminescent display panel 110 and the touch element 130 without using two or more flexible circuit boards 640.

In detail, please refer to FIG. 15 and FIG. 16 simultaneously. In order to realize multiple functions, the driving wafer 650 has a plurality of first pins 652 and a plurality of second pins 654. The first pin 652 is electrically connected to the organic light emitting unit 116 of the organic electroluminescent display panel 110 , and the second pin 654 is electrically connected to the touch component 130 . In addition, in the embodiment, the first pin 652 defines a first connection region I and the second pin 654 defines a second connection region II. The distance d1 between the first connection region I and the second connection region II is, for example, greater than a distance d2 between any two adjacent first pins 652 and a distance d3 between any two adjacent second pins 654. In this way, the first connection area I and the second connection area II can be clearly distinguished to facilitate the correct assembly of the driving chip 650 on the touch display panel 600 during the manufacturing process. A pad corresponding to the first pin 652 and the second pin 654 of the driving wafer 650 is also disposed on the carrier board 112.

In addition, in the present embodiment, the driving wafer 650 is disposed on the carrier board 112, for example, by transmitting a wafer on a carrier plate (Chip on Glass, COG). However, in other embodiments, the driver wafer 650 can be selectively disposed on the cover panel 120 through the wafer on the carrier (Chip on Glass, COG). Further, the driving chip 650 can also be selectively disposed on the flexible circuit board 640 or other external electronic devices.

17 is a cross-sectional view of a touch display panel according to a seventh embodiment of the present invention, and FIG. 18 is a top view of an active device array and a touch element of the organic electroluminescent display panel of the touch display panel of FIG. schematic diagram. Referring to FIG. 17 and FIG. 18 , the touch display panel 700 includes an organic electroluminescent display panel 710 , a cover 120 , a touch component 720 , and a decorative layer 140 . The organic electroluminescent display panel 710 includes a carrier board 112, a package cover 114, a plurality of organic light emitting units 116, and an active device array 712C. The carrier plate 112 is assembled with the package cover 114 to form a sealed space S, and the organic light emitting unit 116 is disposed on the carrier plate 112 and located in the sealed space S. The active device array 712 is electrically connected to the organic light emitting unit 116, for example. The cover plate 120 is adhered to one side of the carrier plate 112 away from the organic light emitting unit 116. The touch element 720 is disposed between the carrier 112 and the cover 120 of the organic electroluminescent display panel 710. The decorative layer 140 is disposed on the cover plate 120.

Specifically, the organic electroluminescent display panel 710 of the present embodiment is an active organic electroluminescent display panel. The active device array 712 includes, for example, a plurality of scan lines 712A, a plurality of data lines 712B, and a plurality of active elements 712C. The scan line 712A is intersected with the data line 12B, and each active element 712C is connected to the corresponding scan line 712A, the corresponding data line 712B, and the corresponding organic light emitting unit 116. In addition, the touch element 720 of the present embodiment includes a plurality of sensing electrodes 722 parallel to the data line 712B, and a touch sensing capacitance CT is formed between the sensing electrodes 722 and the scan lines 712A. It should be noted that the scan line 712A of the organic electroluminescent display panel 710 is used as the scan line for touch sensing. Therefore, the touch element 720 can be constructed only by the sensing electrodes 722 patterned by a single conductive layer.

At this time, in order to increase the size of the touch sensing capacitance CT, the active device array 712 may further include a plurality of coupling patterns 712D connected to the scan line 712A. In the present embodiment, the coupling pattern 712D may overlap with the data line 712B to reduce the coupling effect between the coupling pattern 712D and the organic light emitting unit 116. As a result, the organic light emitting unit 116 can maintain an ideal display effect. In addition, in this embodiment, all of the scan lines 712A are connected with a coupling pattern 712D, and all of the scan lines 712A simultaneously serve as scan lines for the display function and scan lines for the touch sensing function. However, the invention is not limited thereto.

FIG. 19 is a top plan view of the active device array and the touch element of the organic electroluminescent display panel in another embodiment of the touch display panel of FIG. 17. FIG. Referring to FIG. 17 and FIG. 19 simultaneously, in the embodiment, the active device array 712 includes, for example, a plurality of scan lines 712E, a plurality of data lines 712F, and a plurality of active elements 712G. The scan line 712E is intersected with the data line 12F, and each active element 712G is connected to the corresponding scan line 712E, the corresponding data line 712F, and the corresponding organic light emitting unit 116. In addition, the touch element 720 of the embodiment includes a plurality of sensing electrodes 722 parallel to the data line 712F, and a touch sensing capacitance CT is formed between the sensing electrode 722 and the scan line 712E. It is worth mentioning that in this embodiment, only part of the scan lines 712E are simultaneously applied to the scan lines of the display function and the scan lines of the touch sensing function. Therefore, the coupling pattern 712H is disposed only on a portion of the scan line 712E.

For example, in the present embodiment, the odd-numbered scan lines 712E are applied only to the scan lines of the display function, and the coupling patterns 712H are not connected. In addition, the even-numbered scan lines 712E are simultaneously applied to the scan lines of the display and touch sensing functions, so that the even-numbered scan lines 712E are provided with the coupling patterns 712H. In other words, the touch display panel 700 does not need to have all of the scan lines 712E applied to both functions of scanning simultaneously. Under the required resolution, the manufacturer can select only a portion of the scan line 712H to be simultaneously applied to the scan lines of the display and touch sensing functions, and the remaining scan lines 712H enter the scan lines for display.

In summary, the present invention places the touch element on the cover plate having the decorative layer and adheres the cover plate provided with the touch element to the organic electroluminescent display panel. In addition to the structures disclosed in the foregoing embodiments, the touch elements may be formed by sensing electrodes patterned by a single conductive layer, such as the pattern structure of the sensing electrodes shown in US Pat. No. 4,087,725. The sensing electrodes are all formed by the same process, and the two adjacent sensing electrodes are not electrically connected to each other. Therefore, the touch display panel can provide both touch and display functions without significantly increasing the thickness, and has more practical utility. Even in the embodiment, the cover plate may be a plastic substrate and the sensing electrodes are formed by a printing process, which simplifies the process and reduces the manufacturing cost.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

100~700. . . Touch display panel

110, 710. . . Organic electroluminescent display panel

112. . . Carrier board

114. . . Package cover

116. . . Organic light unit

116A. . . First electrode

116B. . . Luminous layer

116C. . . Second electrode

118. . . Frame glue

120. . . Cover plate

130, 130A~130D, 720. . . Touch element

132, 132A~132D. . . First sensing series

134, 132A~134D. . . Second sensing series

140, 540. . . Decorative layer

150, 220, 230, 320, 420, 630. . . Adhesive layer

160, 170, 650. . . Driver chip

180, 190, 640. . . Flexible circuit board

210, 610. . . Circular polarizer

310, 410, 620. . . Shielding conductive layer

652. . . First pin

654. . . Second pin

712. . . Active component array

712A, 712E. . . Scanning line

712B, 712F. . . Data line

712C, 712G. . . Active component

712D, 712H. . . Coupling pattern

722. . . Sense electrode

A-A', B-B', C-C', D-D'. . . Section line

C1. . . First bridge electrode

C2. . . Second bridge electrode

D1. . . First direction

D2. . . Second direction

D1~d3. . . distance

E1. . . First sensing electrode

E2. . . Second sensing electrode

I. . . First connection area

II. . . Second connection zone

I1, I2, I5. . . Insulation pattern

I3, I4. . . Insulation

L. . . External light

L1. . . First circularly polarized light

L2. . . reflected light

PV. . . The protective layer

S. . . Sealed space

T1, T2. . . Transmission line

TH. . . Contact window

1 is a cross-sectional view of a touch display panel according to a first embodiment of the present invention.

2 is a top view of the first touch element.

3 is a top view of a second type of touch element.

4 is a cross-sectional view of the touch element of FIG. 3 taken along line A-A'.

FIG. 5 is a schematic top view of a third type of touch element.

6 is a cross-sectional view of the touch element of FIG. 5 taken along line B-B'.

FIG. 7 is a schematic top view of a fourth touch element.

8 is a cross-sectional view of the touch element of FIG. 7 taken along line C-C'.

FIG. 9 is a top view of the fifth touch element.

10 is a cross-sectional view of the touch element of FIG. 9 taken along line D-D'.

11 is a cross-sectional view showing a touch display panel according to a second embodiment of the present invention.

FIG. 12 is a cross-sectional view showing a touch display panel according to a third embodiment of the present invention.

FIG. 13 is a cross-sectional view showing a touch display panel according to a fourth embodiment of the present invention.

FIG. 14 is a cross-sectional view showing a touch display panel according to a fifth embodiment of the present invention.

15 is a cross-sectional view showing a touch display panel according to a sixth embodiment of the present invention.

16 is a partial top plan view of the touch display panel of FIG. 15.

FIG. 17 is a cross-sectional view showing a touch display panel according to a seventh embodiment of the present invention.

18 is a top plan view of an active device array and a touch element of an organic electroluminescent display panel in the touch display panel of FIG. 17.

FIG. 19 is a top plan view of the active device array and the touch element of the organic electroluminescent display panel in another embodiment of the touch display panel of FIG. 17. FIG.

100. . . Touch display panel

110. . . Organic electroluminescent display panel

112. . . Carrier board

114. . . Package cover

116. . . Organic light unit

116A. . . First electrode

116B. . . Luminous layer

116C. . . Second electrode

118. . . Frame glue

120. . . Cover plate

130. . . Touch element

140. . . Decorative layer

150. . . Adhesive layer

160, 170. . . Driver chip

180,190. . . Flexible circuit board

C1, C2. . . Bridge electrode

E2. . . Sense electrode

I1. . . Insulation pattern

PV. . . The protective layer

S. . . Sealed space

T1, T2. . . Transmission line

Claims (13)

A touch display panel includes: a cover plate comprising a touch component and a decorative layer, the decorative layer is located around one side of the cover plate; and an organic electroluminescent display panel comprising a carrier plate and a package cover And a plurality of bottom-emitting organic light-emitting units, the carrier plate and the package cover are grouped together to form a sealed space, the organic light-emitting units are disposed on the carrier plate and located in the sealed space; and an adhesive layer The cover sheet is adhered to the carrier plate by the adhesive layer. The touch display panel of claim 1, further comprising a circular polarizing plate attached between the carrier plate of the organic electroluminescent display panel and the cover plate. The touch display panel of claim 1, further comprising a shielding conductive layer disposed between the carrier board of the organic electroluminescent display panel and the touch element. The touch display panel of claim 1, further comprising a driving chip and a flexible circuit board, wherein the flexible circuit board is electrically connected to the organic light emitting unit and the touch component. The driving chip is electrically connected to the organic light emitting unit and the touch element through the flexible circuit board. The touch display panel of claim 4, wherein the driving chip has a plurality of first pins and a plurality of second pins, and the first pins are electrically connected to the organic light emitting units. The second pins are electrically connected to the touch component, and the first pins define a first connection area and the second pins define a second connection area, the first connection area The distance from the second connection zone is greater than the distance between any two adjacent first pins and the distance between any two adjacent second pins. The touch display panel of claim 1, wherein the organic electroluminescent display panel further comprises an active device array disposed on the carrier board and electrically connected to the organic light emitting units, and the active The component array includes a plurality of scan lines, a plurality of data lines, and a plurality of active elements, wherein the scan lines are intersected with the data lines, and each of the active elements is connected to a corresponding scan line, a corresponding data line, and a corresponding organic Light unit. The touch display panel of claim 6, wherein the active device array further comprises a plurality of coupling patterns connected to the scan lines, and the coupling patterns overlap the data lines. The touch display panel of claim 6, wherein the touch element comprises a plurality of sensing electrodes parallel to the data lines, and the sensing electrodes form a touch with the scan lines Control the sensing capacitance. The touch display panel of claim 1, wherein the touch component comprises a plurality of first sensing series and a plurality of second sensing series, the first sensing series along a first The second sensing series extends in a second direction and is spatially separated from the first sensing series, and the first direction is staggered in the second direction. The touch display panel of claim 9, wherein each of the first sensing series comprises a plurality of first sensing electrodes and a plurality of first bridges electrically connecting the first sensing electrodes Each of the second sensing series includes a plurality of second sensing electrodes and a plurality of second bridge electrodes electrically connected to the second sensing electrodes, each of the second bridge electrodes being insulated by an insulating pattern Corresponding first bridging electrodes are electrically insulated, and two ends of the insulating pattern respectively have a contact window, such that each of the second bridging electrodes is electrically connected to two adjacent second sensing electrodes, and the insulating pattern is The sum of the areas of the adjacent two second sensing electrodes overlapping is less than 40% of the area of each of the second sensing electrodes. The touch display panel of claim 1, wherein the touch element comprises a plurality of sensing electrodes, all of which are formed by the same process, and two adjacent sensing electrodes are mutually There is no electrical connection between them. The touch display panel of claim 11, wherein the cover plate is a plastic substrate and the sensing electrodes are formed by a printing process. The touch display panel of claim 1, wherein the decorative layer is disposed on a side of the cover plate away from the touch element.